6 Conveyor Tracking
6.2 Conveyor Tracking Requirements
6-3
168542-1CD
168542-1CD
MLX200 Software and
Operations
6.2 Conveyor Tracking Requirements
At a high level, a customer requires four things to setup conveyor tracking.
These are:
1. A conveyor.
2. An incremental encoder that is mounted to the conveyor for reading
conveyor position.
3. A counter card (or something comparable) for ControlLogix/
CompactLogix that is used to read the encoder position.
4. A sensor that generates a trigger output that is used to capture the
position of an object on the conveyor. Normally, this output will be
wired in to the “latch” input of the counter card.
Conveyor tracking has been tested with MLX200 using the following
hardware/software:
1. Conveyor - Any straight line conveyor with speeds up to 150 ft/minute.
2. Counter Card - The 1756-HSC/B Version 3.4 card for ControlLogix and
the 1769-HSC/B Version 2.1 card for CompactLogix.
3. Incremental Encoder - Allen Bradley 845H
4. Latch Input - Photo Eye/Switch (e.g. Allen Bradley 42EF-D1JBCK-F4
series A)
5. MLX200 Control Module with Conveyor Tracking feature enabled.
6. RSLogix 5000 development environment Version 20.
MLX200 is delivered with a sample conveyor tracking program. The
sample program consists of a basic conveyor tracking program that uses
the MLX200 Conveyor tracking AOI's. This sample program can be used
as a starting point to building a full conveyor tracking application.
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